Police say Rosby pulled up to the scene and began taking pictures, interfering with the barricade situation, so officers decided to arrest him.

The 2-year-old rottweiler, Max, was in the backseat of Rosby’s car when the animal jumped out of an open window and began lunging at officers, police said.

Hoffman shot Max several times, according to the lawsuit. The video showed the dog dying on the street as shocked onlookers wailed and screamed in the background.

“Officer Hoffman’s conduct was directed at Mr. Rosby and was intended to humiliate and harm him and to cause psychological trauma to Mr. Rosby by forcing him to watch the brutal and inhumane execution of his beloved dog,” the lawsuit alleges.

The video of the incident by a bystander “was downloaded millions of times and became the source of national and global attention and utter embarrassment for the Hawthorne Police Department,” according to the lawsuit.

In retaliation for the video, Hawthorne police “fabricated police reports that claimed Mr. Rosby was the aggressor during the arrest,” the lawsuit alleges. “The police reports also claimed that Mr. Rosby threatened and intimidated other witnesses from releasing other videos of the incident.”

Rosby was targeted for harassment by Hawthorne police after he filed a complaint against the department in July 2011 alleging “corrupt practices,” according to the lawsuit.